No power PC is dead tried a spare power supply and PC works.. Green led on rear of power supply blinks all the time.when disconnecting 110v ac plug light then dims still blinks but slower then goes out Thanks Ray

probably ur battery is dead or your loading circuit is malfunctioning, due to internal circuitry overload most like to overheating.

from the web -
1 Removed the battery
2 Removed the AC power
3 Plugged in the AC power again
Note:- At this point the light from flashing amber light to solid green indicating AC Power
4 Plugged in the Battery
Note:- Solid green AC power light and Amber charge light

If the Power supply LED dims and flickers its either your motherboard circuit has been cut or there is a short in the laptop. The AC adapter is not the cause.

Try this:
Remove the battery, then press power button to drain all the current, then re-install battery and plug to adapter.

If that doesn't work, then it's most likely the motherboard.

Borrow a "MultiMeter" and check the VOLTAGE and AMPERAGE output from the battery. Although it's rare for an 18-month-old battery to "die" (or to refuse to recharge), it can happen.

If you try to run the computer _only_ on the battery, without AC power, does it work? If not, replace the battery -- look on eBay for cheaper-than-Original-Equipment replacement batteries.

From your description, I agree with you assessment of a likely Motherboard failure.

You have a bad power supply. It is not an expensive fix. Remember HP's take HP power supplies. When ordering either look on ebay for your model or order from part supplier.

"When the charger is connected to an AC source, the green LED shines steady and bright."

are you talking about the led on the AC-adaptor? cause if its that led that dims down, its a defective ac-adapter (even tho you still might not believe me). replace it and try again.

how would you know that the battery is fully charged?


please rate my solution after you have tested if it works out for you :)

This is an easy fix so here you go nice and simple:

Problem: Your motherboard circuit has been cut.

Causes: Power disconnected during operation. Power outage or short in the surge protector.

Symptoms: Flashing green light on both motherboard and power supply. System will not power on.

Solution:

Step 1: Ensure that both the power supply and the motherboard lights are flashing green, not solid or off.
Step 2: While the power is on, disconnect the power supply from the motherboard. This connection is the largest of the connections and should be listed as the 'P1' or 'Primary' power connection.

Step 3: Wait until the green light on the motherboard stops flashing and check to ensure that the green light on the power supply is now solid. If it is not solid, disconnect the power to the power supply and wait until the light turns off completely. Then reconnect, it should be solid now.

Step 4: While the power is on, reconnect the P1 connection to the motherboard and you should now see that the light on the motherboard is solid.

Step 5: Power on your PC. The problem should not persist.

Warnings: If the power supply light remains flashing after you have restored power to it while it is disconnected from the motherboard, it may be a system failure in the power supply itself requiring replacement. Always be careful when working with an active or live power machine.

I hope this helped! Good luck!

if the monitor green led is blinking continuosly the follow the steps remove the cable of the monitor which is connected to the CPU and watch the monitor it should show a message ( no input signal or cable disconnected, that means your monitor is OK the problem is with your CPU . try this and let me know